Window structure



July 4, 1961 c LYNCH 2,990,589

WINDOW STRUCTURE Filed Jan. 10, 1958 2 Sheets-Sheet 1 July 4, 1961 c. F. LYNCH 2,990,589

WINDOW STRUCTURE Filed Jan. 10, 1958 2 ShetS-Sheet 2 Unite This invention relates to windows. In particular the invention relates to double hung windows with tilting sashto which use, however, it is not restricted.

More particularly it relates to a method and means for converting regulation sash into a combination vertical and rotative sash and is an improvement over the embodiments disclosed in my Patent No. 1,614,564 dated January 18, 1927 for Window Sash.

Rotative sash such as used in awning and hopper windows offer many advantages over regulation double hung windows. The advantages include directional ventilation, ventilation during rain, prevention of drafts and in the case of hopper windows, of preventing children from falling out. Known rotative sash either restricts the use of screen or storm windows, is limited inthe degree and flexibility of operation, or involves costly installation.

Objects of the invention therefore include a window combining both direct and indirect ventilation; use of standard outside (or inside) screens and storm windows with a pivotal sash, use of any type of weight carrier, use of conventional window looking means; individual sash selective position and degree of rotative movement; adaptability to converting regulation double hung sash for use in accordance with the invention; safe means of washing; and an efficient, economical method and means of easier manufacture, installation and maintenance.

A window construction has now been produced in accordance with the invention which accomplishes the aforesaid objects.

A principal feature of the invention resides in a pair of complementary angle strips forming an auxiliary stile which may be pivotally mounted at one end for rotative separation at the opposite end. One of the strips is attached to the edge or main stile of a sash so as to form a longitudinal groove for matingly receiving the flange of the second strip. The second strip is supported by any type of weight carrier such as a sash balance and mounted for free vertical movement ina guide-track for-med by an auxiliary side jamb. When the assembled strips are interlocked in mutual engagement, the doublehung sash may be operated in the regulation manner, but upon clearing the sill or parting strip either sash may be pivoted inwardly (or outwardly, depending upon the type of installation) to any desired angle thus providing protected, indirect ventilation in all weather conditions.

This novel construction also functions as Weatherstripping and improves the decor of any window by completely hiding the tape, rope, chain or weights from view.

By means of the invention, any conventional wood or metal window could be readily and economically remodeled by attaching one of the complementary angle strips to the sash and guidingly securing the other for invisible support behind specially built lining stops or auxiliary side jambs.

Further features and advantages of the invention will be apparent in the following detail description and the accompanying drawings which illustrate preferred embodiments of the invention, wherein:

FIG. 1 is aninside elevation of a window construction embodying the invention;

FIG. 2 is a cross-sectional elevation taken along lines 2-2 of FIG. 1, but showing upper and lower sash rotated inwardly to desired angles, with further opening of lower sash in dotted line;

FIG. 3 is a fragmentary, perspective view partly' in cross-section of the left window frame illustrating the method of operation with the upper sash in open vertical position, and the lower sash in tilted position; 7

FIG. 4 is a partial cross-sectional view taken on line 4-4 of FIG. 1 showing assembly mechanism of upper and lower sash to respective components,

FIG. 5 is a detail view of the right end of an upper window sash in slightly open position; 7 FIG. 6 is an exploded perspective view of a pair of pivoted angle strips attached to a window sash; and

FIG. 7 is a cross sectional view of a modification' of the combination guide and weatherproofing auxiliary side jamb.

As shown in FIG. 1, the window 10 is mounted in a frame 11 having a sill 12, a head jamb or lintel 13, a parting strip 14, outer jambs 15, 16 and inner jambs 17, 18. The window is shown provided with conventional balances 19, 19. The upper and lower panes of glass 20, 21 are of regulation uniform size although the top and meeting rails 22, 23 of the upper or outer sash 24 are shorter than the meeting and bottom rails 25,- 26 of the lower or inner sash 27, and the upper stiles 28, 29 are narrower than lower stiles 30, 31 for purposes hereinafter described. Angle strips 32, 33, 34, 35 preferably of non-corrosive metal or other non-warping terial may be affixed to main stiles 28'31 as by screws 36.

FIGS. 2 to 6 show the inner construction and method of operating the combination double hung windows as hopper windows. By reversing the structure, the sash can be rotated to form awning windows. The combined operations of the window are eifectcd by the use of pivoted pairs of rigid angle strips such as strips 34, 34a forming the supported and rotational portions of an auxiliary stile illustrated in FIG. 6. Strip 34 or the rotational portion is attached to either side of a sash as shown in FIG. 1 to form a groove 34b. The coinplementary strip or supported portion 34a is attached'to tape 19a from sash balances 19 or equivalent supporting means and mounted for free movement in guide tracks 37, 38, 39, 40 formed by a substantially rectangular L-shaped auxiliary jambs 1518.

As shown in FIG. 3, the flanged complementary angle strips 32, 32a of outer sash 24, overlap to fully and closely interlock in mating engagement to raise and lower the sash within the frame 11. After the lower sash 27 is raised beyond the sill, it may be tilted inwardly from frame 11 by separating the fixed rotational strip 34 from its sliding portion or movable strip 34a. The movable strip 34a is attached to balance tape 19a of to any weight, cable, chain or rope by means of a hook 41, riveted or otherwise attached at right angles to the sliding rail.

The pivoted ends of the flanges on both complementary strips are rounded to allow for anassembled pivotal separation. A similarly shaped lug 42 is riveted, welded or otherwise attached to the outer surface of the ota; tional flange before the latter is joined to the flange of the movable strip by any conventional attachment means such as a ke'rfed bolt 44 and nut 45. A lock washer or split ring 43 acts as a torsion spring to regulate the tension between the interlocking pivoted portions of the auxiliary stile. This torsion spring which may consist of one or more lock washers is mounted on the bolt 44 between the flange of the supported strip and nut 45. Thus the pivoted sash may be resiliently locked at any desired angle from a sliding vertical position to 80 relative thereto by the frictional action of this torsion spring. The tension of the spring may be easily adjusted by tight- .34d or laterally extending portion of strip 34a. construction improves the decor or appearance of the im- 3 ening or loosening the bolt relative to the nut 45, anchored in slot 46, by means of a screwdriver. When heavier sash is used a proportionately stronger spring will be required.

The bottom and upper meeting rails 23, 26 are slotted or recessed as at 46 to receive the bolted pivoted end f the strips (see FIG. 4) before attaching the fixed .strips to the sash as shown in FIG. 1.

Lug 42 into which bolt 44 is countersunk performs the additional functions of providing a stop for clearance between the flange of the fixed strip and the auxiliary fcasing or main side jambs 47 by conventional attach- -ment means such as screws 54 to form the outer and inner guide tracks 37, 38 for rails 32d and 34d respectively. The dimensions of the illustrated wooden side jambs may be considerably reduced in depth to form a larger inner longitudinal pocket or channel 55 within which conventional supporting means 19 and hook means 41 are fully enclosed and entirely hidden from view. FIG. 7 shows a model of the side jamb using metal in which one side may be bent at right angles to provide aligned threads for screws 54, with the other side abutting rail 34d to form guide-track 38. It will be seen that the metal auxiliary jamb 17a also provides a larger substantially rectangular channel 55 which functions as a wind stop by trapping outer air entering in back of rail This proved window structure by completely hiding from view the otherwise visible hook 41 and supporting means 19a. The combination sash may also be made of metal.

If metal sash is used, the fixed strips 32-35 forming longitudinal grooves or female enclosures, such as 341),

may be fabricated as an integral part of the sash.

Conventional outside screens or storm windows 49 hung between blocking 50 and outer sill 51, see FIG. 2,

may be used with the illustrated hopper windows since at no time will the rotary sash project beyond its respective coupled strips 32a-35a.

Should the sash be pivotally mounted at the top with respect to a corresponding movable rail to form pivotal awning windows, inside screens and storm sash could be used as is conventional in the art.

Regardless of the particular manner in which the combination double-hung sash is coupled to the auxiliary stile, the window may be locked by a hook 52 and latch 53.

The shape and positioning of vertically movable strips 32a-35a advantageously also functioning as a wind stop course, suggest themselves to those skilled in the art.

I claim:

1. In a window structure having a generally rectangular frame including a pair of spaced main side jambs, a lintel, a sill and supporting means disposed exteriorly of said main jambs to raise and lower sash therebetween, the combination of an interlocking auxiliary stile and an auxiliary side jamb, said auxiliary stile having a supported portion and a rotational portion, said supported portion and said rotational portion comprising rigid flanged strips, rounded edges disposed at one end of the flanges on both of said strips, pivotal means joining said portions to said sash in flange overlapping position proximate said rounded edges, 21 female enclosure disposed between the flange of said rotational portion and the main stile of said sash for interlocking engagement with the flange of said supported portion, the rounded edge of each of said flanges forming a braking surface against the opposite strip to limit rotational separation thereof, tension means mounted on said pivotal means to adjust such interlocking engagement to retain said por tions in selected vertical or rotational positions, hook means disposed on the strip of said supported portion for attachment to said supporting means, said auxiliary side jamb when secured to said main jamb in spaced relation to said supported portion concealing said supporting means and said hook means and providing a track for guided movement of said auxiliary stile on said concealed supporting means.

2. The combination recited in claim 1 wherein said pivotal means comprises a threaded bolt extending through the flanges of said auxiliary stile, said tenson means comprises a torsion spring mounted on said bolt, and a nut threadable on said bolt disposed in a recess of said main stile to retain said pivotal means and said spring in adjustably locked position.

3. The combination recited in claim 1 wherein a rigid lug is disposed between said rotational flange and said auxiliary jamb, said lug forming a side stop to space said flange from said auxiliary jamb for unrestricted movement of said sash within said frame, a rounded edge disposed on said lug corresponding to the rounded edge of said flange to increase the braking surface of said flange against said supported strip.

4. The combination recited in claim 1 in which a channel is disposed longitudinally between said main and said auxiliary side jambs, said track comprises a narrow longitudinal opening in said channel and each supported portion riding in a track cooperates with its respective channel to weatherseal said window structure when the sash in said structure is in closed position.

References Cited in the file of this patent UNITED STATES PATENTS 1,002,396 Hartman Sept. 5, 1911 1,735,649 Neubecker Nov. 12, 1929 2,006,745 Polson et a1. July 2, 1935 2,642,631 Mauro June 23, 1953 2,659,943 Polson et al. Nov. 24, 1953 2,666,235 Kaufman et al Jan. 19, 1954 2,672,657 Polson et a1. Mar. 23, 1954 2,778,068 Kaufman et al I an. 22, 1957 FOREIGN PATENTS 4,770 Great Britain Feb. 26, 1912 

